Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan tu » phan tu, chon tu, chai tu
han tu » phan tu, hanh tu, ban tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh trinh cua nhung ((cong dan) or (cong tan)) ((chan tu) OR (han tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh cua nhung ((cong dan) OR (cong tan)) ((chan tu) OR (han tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh trinh cua nhung ((cong dan) or (cong tan)) ((chan tu) OR (han tu))".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh cua nhung ((cong dan) or (cong tan)) ((chan tu) OR (han tu))*.